Wikipedia wrote:

1 China, People's Republic ofn2 1,339,724,852 November 1, 2010 19.22% 2010 China Census

2 India 1,210,193,422 March 1, 2011 17.36% Provisional 2011 Indian Census result

3 United States 312,481,000 October 23, 2011 4.48% Official United States Population Clock

4 Indonesia 237,556,363 May 2010 3.41% 2010 Indonesian Census

5 Brazil 190,732,694 August 1, 2010 2.74% 2010 Official Brazilian Census results

6 Pakistan 177,598,000 October 23, 2011 2.55% Official Pakistani Population clock

7 Nigeria 158,423,000 2010 2.27% UN estimate for 2010

8 Bangladesh 151,487,000 October 23, 2011 2.17% Official Bangladeshi Population Clock

9 Russia 142,914,136 January 1, 2011 2.05%

10 Japan

The modern UK plays a leading part in the aerospace industry, with companies including Rolls-Royce playing a leading role in the aero-engine market; BAE Systems acting as Britain's largest and the Pentagon's sixth largest defence supplier, and large companies including GKN acting as major suppliers to the Airbus project.[228] Two British-based companies, GlaxoSmithKline and AstraZeneca, ranked in the top five pharmaceutical companies in the world by sales in 2009,[229] and UK companies have discovered and developed more leading medicines than any other country apart from the US.[230] The UK remains a leading centre of automotive design and production, particularly of engines, and has around 2,600 component manufacturers.[231] Scientific research and development remains important in British universities, with many establishing science parks to facilitate production and co-operation with industry.[232] Between 2004 and 2008 the UK produced 7% of the world's scientific research papers and had an 8% share of scientific citations, the third and second highest in the world (after the United States and China, and the United States, respectively).[233] Scientific journals produced in the UK include Nature, the British Medical Journal and The Lancet.[234]